JPH0642286A - Method and device for constructing underground structure - Google Patents
Method and device for constructing underground structureInfo
- Publication number
- JPH0642286A JPH0642286A JP4124100A JP12410092A JPH0642286A JP H0642286 A JPH0642286 A JP H0642286A JP 4124100 A JP4124100 A JP 4124100A JP 12410092 A JP12410092 A JP 12410092A JP H0642286 A JPH0642286 A JP H0642286A
- Authority
- JP
- Japan
- Prior art keywords
- underground structure
- steel pipe
- roof
- cutter plate
- friction cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、特に、鉄道、道路等の
下部地中の土被りの浅い位置に大幅員の地下構造物を横
断方向に掘進建設する際に上部交通に支障を与えること
なく施工することができる地下構造物の構築方法及びそ
れに使用する装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is particularly intended to obstruct upper traffic when excavating a large number of underground structures in the transverse direction at a shallow depth of soil such as railways and roads. The present invention relates to a method for constructing an underground structure that can be installed without any trouble and an apparatus used for the method.
【0002】[0002]
【従来の技術】鉄道、道路等の下部地中に大幅員の鉄筋
コンクリート製の地下構造物を横断方向に掘進させるに
は、上部交通を支承するための防護工が必要となり、か
かる防護工として従来鋼管等を水平に並列させるパイプ
ルーフを設けることなどが挙げられる。2. Description of the Related Art In order to dig a large number of reinforced concrete underground structures into the lower ground such as railways and roads in the transverse direction, a protective work for supporting upper traffic is required. Providing a pipe roof in which steel pipes and the like are arranged in parallel horizontally is mentioned.
【0003】これは鉄道等を挟んだ計画トンネルの両側
に発進坑と到達坑の両立坑を掘削し、鉄道等下の適宜深
さの地盤内に、鉄道等に対して略直角方向に多数本の鋼
管パイプを互いに密接状態で並列させて水平に圧入する
ことによりパイプルーフ防護工を施工したのち、発進坑
と到達坑の一方の立坑から他方の立坑に向かって側部の
土留と鋼管パイプを支持する支保工を架設しながらトン
ネルを掘削する。そしてトンネル内にコンクリート製地
下構造物を構築する。This is to excavate both a starting pit and a reaching pit on both sides of a planned tunnel across a railroad or the like, and in the ground of an appropriate depth below the railroad or the like, a large number of them are provided in a direction substantially perpendicular to the railroad or the like. After constructing the pipe roof protection work by horizontally squeezing the steel pipes in parallel with each other and press-fitting them horizontally, the earth retaining pipe and the steel pipes on the side are connected from one vertical shaft of the starting shaft and the reaching shaft to the other vertical shaft. Excavate the tunnel while constructing supporting supports. Then, a concrete underground structure is built in the tunnel.
【0004】しかし、このような従来のパイプルーフ防
護工では、このパイプルーフ防護工を施工するための工
事は、トンネル掘削の工事や地下構造物の構築工事に先
行して行わなければならず、3種の工事を別々に施工す
るため、工期、工費が大となり、苦労と経済的損失が大
きい。However, in such a conventional pipe roof protector, the work for constructing the pipe roof protector must be carried out prior to the tunnel excavation work and the underground structure construction work. Since the three types of construction are carried out separately, the construction period and construction cost are large, and the labor and economic loss are large.
【0005】また、鋼管パイプを地中に埋設し、それに
よって鉄道等及び土被り分を支持してその下方に地下道
となるトンネルを構築するものであるから、土被り分と
鋼管パイプの直径に加えてトンネル天端とパイプルーフ
間にトンネル天端を作る際の作業空間が必要となり、こ
れらの分だけトンネルを深く構築しなければならない。Further, since the steel pipe is buried in the ground to thereby support the railway and the overburden portion and to construct a tunnel to be an underground passage thereunder, the diameter of the overburden portion and the steel pipe pipe is reduced. In addition, a work space is required to make the tunnel crown between the tunnel crown and the pipe roof, and the tunnel must be constructed deeper by these amounts.
【0006】これに対して、発明者は先に図7、図8に
示すような、地中に掘進させる地下構造物の防護工を別
工事として施工することなく、地下構造物の掘進と同時
に行うので数種の工事を同時に一挙に行うことができ、
しかも安全かつ確実に、また安価に工事ができ、さら
に、土被りも浅く施工できる地下構造物の構築方法を発
明し、かつ出願した。On the other hand, the inventor does not have to separately construct a protective work for the underground structure to be dug into the ground as shown in FIGS. Because it is done, several types of construction can be done at once,
Moreover, we have invented and applied for a method of constructing an underground structure that can be constructed safely, reliably, and inexpensively, and that can be constructed with a shallow soil cover.
【0007】先に図7について説明すると、鉄道等上部
交通1の脇に土留鋼矢板2を打設して、発進坑3と到達
坑4を築造し、該発進坑3内に圧入機(図示せず)を設
置してこれで断面箱型のルーフ用鋼管5を到達坑4へ向
けて圧入させる。前記圧入機は、このルーフ用鋼管5の
ジャッキ等による押出機構とオーガー等による鋼管5の
内部掘削機構とを有するものである。Referring first to FIG. 7, a retaining steel sheet pile 2 is driven beside the upper traffic 1 such as a railroad to construct a starting pit 3 and a reaching pit 4, and a press-fitting machine (Fig. (Not shown) is installed so that the box-shaped roof steel pipe 5 is press-fitted toward the reaching pit 4. The press-fitting machine has an extruding mechanism such as a jack for the roof steel pipe 5 and an internal excavating mechanism for the steel pipe 5 such as an auger.
【0008】ルーフ用鋼管5は、略正方形断面の箱型筒
体であり、上面に平板鋼板からなるフリクションカッタ
ープレート6を設けている。このフリクションカッター
プレート6はその先端はルーフ用鋼管5の先端に溶接等
で固着するが、先端以外はルーフ用鋼管5の上面に重合
わせて載置するだけであり、ルーフ用鋼管5を1本ずつ
順次接続していく時に、このフリクションカッタープレ
ート6もルーフ用鋼管5の長さ分だけ溶接等でつないで
長くしていく。The roof steel pipe 5 is a box-shaped tubular body having a substantially square cross section, and a friction cutter plate 6 made of a flat steel plate is provided on the upper surface thereof. The friction cutter plate 6 has its tip fixed to the tip of the roof steel pipe 5 by welding or the like, but except the tip, the friction cutter plate 6 is simply placed on the upper surface of the roof steel pipe 5 in an overlapping manner. When the friction cutter plates 6 are sequentially connected one by one, the friction cutter plate 6 is also connected by welding or the like for the length of the roof steel pipe 5 to make it longer.
【0009】鋼管5の並べ方は、計画トンネル断面の必
要個所に合わせるもので、図4〜図6に示すように一文
字型(図4) 、門型( 図5) 、函型( 図6) などでトン
ネルを形成する地下構造物9に合わせて適宜選択され
る。図4の一文字型の場合は通常のパイプルーフ20を外
側に組合わせることも可能である。The arrangement of the steel pipes 5 is made according to the required location of the cross section of the planned tunnel. As shown in FIGS. 4 to 6, one-letter type (FIG. 4), gate type (FIG. 5), box type (FIG. 6), etc. Is appropriately selected according to the underground structure 9 forming the tunnel. In the case of the one-letter type shown in FIG. 4, it is possible to combine an ordinary pipe roof 20 on the outside.
【0010】次いで、発進坑3内に反力壁8、ボックス
カルバートと称せられるコンクリート函体による地下構
造物9をセットし、反力壁8と地下構造物9との間には
元押し推進ジャッキ10を設け、地下構造物9の先端にフ
ード状の刃口11を設けるとともに地下構造物9の先端と
前記ルーフ用鋼管5の後端との間には小ジャッキ12を介
在させる。図中21はルーフ用鋼管5の後端下面を支承す
る支承受部材であり、14は反力壁8と元押し推進ジャッ
キ10との間に介在させるストラット、13はフリクション
カッタープレート6の後端の止め部材で、該止め部材13
は発進坑3側に設ける。Next, a reaction wall 8 and an underground structure 9 made of a concrete box called a box culvert are set in the starting pit 3, and a thrust pushing jack is provided between the reaction wall 8 and the underground structure 9. 10 is provided, a hood-shaped blade 11 is provided at the tip of the underground structure 9, and a small jack 12 is interposed between the tip of the underground structure 9 and the rear end of the roof steel pipe 5. In the figure, 21 is a support member for supporting the lower surface of the rear end of the roof steel pipe 5, 14 is a strut interposed between the reaction wall 8 and the push-push jack 10, and 13 is a rear end of the friction cutter plate 6. The stop member of the
Is provided on the side of the start pit 3.
【0011】フリクションカッタープレート6の先端と
ルーフ用鋼管5の前端との固着を解除しておき、地下構
造物9を反力部材として小ジャッキ12でルーフ用鋼管5
を押し進める。押し進めた分だけフリクションカッター
プレート6下で地下構造物9を反力壁8に反力を取りな
がら元押し推進ジャッキ10で掘進させる。この時、フリ
クションカッタープレート6は地中に残置される。The adhesion between the tip of the friction cutter plate 6 and the front end of the roof steel pipe 5 is released, and the underground structure 9 is used as a reaction force member with a small jack 12 to form the roof steel pipe 5.
Push forward. The underground structure 9 is excavated by the original pushing propulsion jack 10 while applying a reaction force to the reaction force wall 8 under the friction cutter plate 6 by the amount pushed. At this time, the friction cutter plate 6 is left in the ground.
【0012】このように、フリクションカッタープレー
ト6を残しながら、フリクションカッタープレート6下
で地下構造物9を前進させることで、地下構造物9の周
面は地盤とは縁が切れた状態で進み、土圧による摩擦抵
抗を受けずにすむ。また、地下構造物9を掘進させるに
は、刃口11の前部を掘削するが、この作業はルーフ用鋼
管5で防護されたものとなり、土砂崩壊のおそれがなく
安全に行える。In this way, by advancing the underground structure 9 under the friction cutter plate 6 while leaving the friction cutter plate 6, the peripheral surface of the underground structure 9 advances with the edge cut off from the ground, It does not suffer from frictional resistance due to earth pressure. Further, in order to advance the underground structure 9, the front part of the cutting edge 11 is excavated, but this work is protected by the steel pipe 5 for the roof, and it can be safely performed without the risk of sediment collapse.
【0013】このようにして、地下構造物9を反力部材
として小ジャッキ12でルーフ用鋼管5を押し進める工程
と、押し進めた分だけフリクションカッタープレート6
を延設する工程と、このフリクションカッタープレート
6下で地下構造物9を掘進させる工程とを適宜繰り返し
て、到達坑4に出たルーフ用鋼管5は1ピースごとに撤
去する。In this way, the step of pushing the roof steel pipe 5 with the small jack 12 using the underground structure 9 as a reaction member, and the friction cutter plate 6 by the pushed amount.
And the step of excavating the underground structure 9 under the friction cutter plate 6 are appropriately repeated to remove the roof steel pipe 5 that has come out to the reaching pit 4 piece by piece.
【0014】そして、地下構造物9の先端が到達坑4に
達したならば、刃口11等を撤去し適宜裏込めグラウトを
行って施工を完了する。When the tip of the underground structure 9 reaches the reaching pit 4, the blade opening 11 and the like are removed and backfilling grout is appropriately performed to complete the construction.
【0015】図8は他例を示すもので、地下構造物9の
推進方法に関して、到達坑4側に反力受材16及びセンタ
ーホール式のけん引ジャッキ17を設け、一端を地下構造
物9に定着具18で定着したP.C鋼線によるけん引部材
19をこのけん引ジャッキ17で引くことにより、到達坑4
側から地下構造物9を引き込むようにすることもでき
る。FIG. 8 shows another example. Regarding the propulsion method of the underground structure 9, a reaction force receiving member 16 and a center-hole type towing jack 17 are provided on the side of the reaching pit 4 and one end of the underground structure 9 is provided. The P. Towing member with C steel wire
By pulling 19 with this towing jack 17, reaching pit 4
The underground structure 9 can be pulled in from the side.
【0016】この方法では、地下構造物9を反力部材と
して小ジャッキ12でルーフ用鋼管5をフリクションカッ
タープレート6を残しながら押し進め、けん引ジャッキ
17を1ストローク分伸長して地下構造物9をけん引した
ならば、このけん引ジャッキ17とけん引部材19との結合
と、けん引部材19と定着具18との結合を解除し、位置を
ずらして再度結合させ、また、再度のけん引に備える。In this method, the underground structure 9 is used as a reaction member to push the roof steel pipe 5 with the small jack 12 while leaving the friction cutter plate 6 and tow the jack.
When 17 is extended by one stroke and the underground structure 9 is towed, the connection between the towing jack 17 and the towing member 19 and the connection between the towing member 19 and the fixing tool 18 are released, the positions are shifted, and the position is shifted again. Combine them and prepare for another towing.
【0017】[0017]
【発明が解決しようとする課題】前記図7、図8に示す
ような地下構造物の構築方法では、地下構造物9の前進
にともない、到達坑4でルーフ用鋼管5を1ピースごと
に撤去するもので、この到達坑4を設けるための場所を
確保しなければならない。また、必ず到達坑4を必要と
するため、鉄道等を挟んだ計画トンネルの両側から地下
構造物を掘進させ計画トンネルの中央で合体させるよう
なことはできない。In the method of constructing an underground structure as shown in FIGS. 7 and 8, the roof steel pipe 5 is removed piece by piece in the reaching pit 4 as the underground structure 9 advances. Therefore, it is necessary to secure a place to install this reaching pit 4. Further, since the reaching pit 4 is always required, it is not possible to excavate an underground structure from both sides of a planned tunnel across a railway or the like and combine the underground structures at the center of the planned tunnel.
【0018】本発明は前記従来例の不都合を解消し、到
達坑を全く設けることなしに済ますかもしくは極めて幅
の狭い到達坑ですみ、また、計画トンネルの両側から地
下構造物を掘進させ計画トンネルの中央で合体させるよ
うな施工も可能な地下構造物の構築方法および装置を提
供することにある。The present invention eliminates the inconvenience of the above-mentioned conventional example, and it is not necessary to provide a reaching tunnel at all, or only an extremely narrow reaching tunnel is required, and an underground structure is dug out from both sides of the planning tunnel. An object of the present invention is to provide a method and a device for constructing an underground structure that can be constructed so as to be integrated in the center of the building.
【0019】[0019]
【課題を解決するための手段】本発明は前記目的を達成
するため、地下構造物の構築方法としては、上面にフリ
クションカッタープレートを配設した断面箱型のルーフ
用鋼管を、計画トンネル断面の必要個所に合わせて並列
させて発進坑から順次接続しながら所要長地中に圧入
し、このルーフ用鋼管後端に地下構造物前端を対向かつ
近接させ、フリクションカッタープレートを地中に残置
しながらルーフ用鋼管後端を適宜長切断除去する工程
と、その除去分に対応する長さをフリクションカッター
プレート下で地下構造物を掘進させる工程とを順次繰り
返すこと、もしくは、鉄道等を挟んだ計画トンネルの両
側に発進坑を設け、上面にフリクションカッタープレー
トを配設した断面箱型のルーフ用鋼管を、計画トンネル
断面の必要個所に合わせて並列させて両発進坑から順次
接続しながら所要長地中に圧入し、計画トンネルの中央
で端部を合致させ、このルーフ用鋼管端に地下構造物前
端を対向かつ近接させ、フリクションカッタープレート
を地中に残置しながらルーフ用鋼管端を適宜長切断除去
する工程と、その除去分に対応する長さをフリクション
カッタープレート下で地下構造物を掘進させる工程とを
順次繰り返し、地下構造物は計画トンネルの中央で合体
させることを要旨とするものであり、地下構造物の構築
装置としては、発進坑から到達坑まで貫通するように地
中に圧入されるもので、上面にフリクションカッタープ
レートを載置し、かつ適宜長切断可能な断面箱型のルー
フ用鋼管と、地下構造物前端に設けるもので断面箱型の
ルーフ用鋼管の後端下面を支承する支承受部材と、発進
坑側に設けるフリクションカッタープレートの後端の止
め部材とからなることを要旨とするものである。In order to achieve the above-mentioned object, the present invention provides a method of constructing an underground structure, in which a box-shaped roof steel pipe having a friction cutter plate is arranged on the upper surface of a planned tunnel cross section. While paralleling in line with the required location and sequentially connecting from the start pit, press-fit into the required length of ground, making the front end of the underground structure face and close to the rear end of this roof steel pipe, leaving the friction cutter plate in the ground. Repeat the steps of appropriately cutting and removing the rear end of the roof steel pipe and the step of excavating the underground structure under the friction cutter plate for a length corresponding to the removed portion, or a planned tunnel with a railroad, etc. Install a launch pit on both sides of the, and install a box-shaped steel pipe for roof with a cross section with a friction cutter plate on the upper surface at the required location of the planned tunnel cross section. Side by side, connecting from both start shafts and press-fitting into the required length of ground, aligning the ends at the center of the planned tunnel, making the roof steel pipe end face and close to the front end of the underground structure, and friction cutter plate While removing the steel pipe end for the roof while appropriately leaving it in the ground, and the step of excavating the underground structure under the friction cutter plate for a length corresponding to the removed amount are sequentially repeated, and the underground structure is The idea is to combine them at the center of the planned tunnel, and as an underground structure construction device, it is pressed into the ground so as to penetrate from the starting pit to the arrival pit, and a friction cutter plate is installed on the upper surface. A steel pipe for roof that has a box-shaped cross section that can be placed and cut appropriately and a bearing that is provided at the front end of the underground structure and that supports the lower surface of the rear end of the steel pipe for roof that has a box-shaped cross section. And the member is for summarized in that comprising a stop member at the rear end of the friction cutter plate provided to the starting pit side.
【0020】[0020]
【作用】請求項1および請求項3記載の本発明によれ
ば、ルーフ用鋼管は後端を適宜長切断除去するものであ
り、これを撤去するための到達坑は全く設けることなし
に済ますかもしくは極めて幅の狭い到達坑ですむ。According to the present invention as set forth in claims 1 and 3, the roof steel pipe has a rear end appropriately cut and removed. Is there no need to provide a pit for removing the roof pipe? Or you can use a very narrow reach.
【0021】請求項2記載の本発明によれば、到達坑を
設ける必要がないので、計画トンネルの両側から地下構
造物を掘進させ計画トンネルの中央で合体させるような
施工が可能となり、両側からの同時施工で工期を早める
ことができる。According to the present invention as set forth in claim 2, since it is not necessary to provide a reaching pit, it is possible to construct such that underground structures are dug from both sides of the planned tunnel and merged at the center of the planned tunnel. The construction period can be accelerated by the simultaneous construction of.
【0022】[0022]
【実施例】以下、図面について本発明の実施例を詳細に
説明する。図1〜図3は本発明の地下構造物の構築方法
および装置の第1実施例を示す各工程図で、前記従来例
を示す図7、図8と同一構成要素には同一参照符号を付
したものである。Embodiments of the present invention will now be described in detail with reference to the drawings. 1 to 3 are process diagrams showing a first embodiment of a method and an apparatus for constructing an underground structure according to the present invention, wherein the same constituent elements as those in FIGS. 7 and 8 showing the conventional example are designated by the same reference numerals. It was done.
【0023】本発明も、鉄道等上部交通1の脇に土留鋼
矢板2を打設して、発進坑3を築造し、該発進坑3内に
圧入機(図示せず)を設置してこれで断面箱型のルーフ
用鋼管5を計画トンネル断面の必要個所に合わせて並列
させて発進坑3から順次接続しながら圧入する。この圧
入長さは計画トンネルの長さに合わせて決定し、土留鋼
矢板2を打設してルーフ用鋼管5の先端部を支承するよ
うにしてもよい。また、図示は省略するが、幅の狭い到
達坑をこの土留鋼矢板2に沿って形成してもよい。Also in the present invention, a retaining steel sheet pile 2 is driven beside the upper traffic 1 such as a railroad to construct a starting pit 3 and a press-fitting machine (not shown) is installed in the starting pit 3 Then, the box-shaped steel pipes for roof 5 having a cross-section box shape are arranged in parallel in accordance with the required locations of the planned tunnel cross-section and press-fitted while sequentially connecting from the start pit 3. The press-fitting length may be determined according to the length of the planned tunnel, and the retaining steel sheet pile 2 may be driven to support the tip portion of the roof steel pipe 5. Although not shown, a narrow pit may be formed along the earth retaining steel sheet pile 2.
【0024】ルーフ用鋼管5は、略正方形断面の箱型筒
体であり、上面に平板鋼板からなるフリクションカッタ
ープレート6を設けるが、このフリクションカッタープ
レート6はその先端はルーフ用鋼管5の先端に溶接等で
固着するが、先端以外はルーフ用鋼管5の上面に重合わ
せて載置するだけであり、ルーフ用鋼管5を1本ずつ順
次接続していく時に、このフリクションカッタープレー
ト6もルーフ用鋼管5の長さ分だけ溶接等でつないで長
くしていく。The roof steel pipe 5 is a box-shaped tubular body having a substantially square cross section, and a friction cutter plate 6 made of a flat steel plate is provided on the upper surface. The friction cutter plate 6 has its tip at the tip of the roof steel pipe 5. Although it is fixed by welding, etc., except for the tip, it is only placed by stacking it on the upper surface of the roof steel pipe 5, and when the roof steel pipes 5 are sequentially connected one by one, this friction cutter plate 6 is also used for the roof. The length of the steel pipe 5 is connected by welding or the like to make it longer.
【0025】そして、フリクションカッタープレート6
の後端は、発進坑3側に設ける止め部材13で固定する。The friction cutter plate 6
The rear end is fixed by a stop member 13 provided on the starting pit 3 side.
【0026】この鋼管5の並べ方は、計画トンネル断面
の必要個所に合わせるもので、図4〜図6に示すように
一文字型(図4) 、門型( 図5) 、函型( 図6) などで
トンネルを形成する地下構造物9に合わせて適宜選択さ
れる。図4の一文字型の場合は通常のパイプルーフ20を
外側に組合わせることも可能である。The method of arranging the steel pipes 5 is to match the required portion of the cross section of the planned tunnel. As shown in FIGS. 4 to 6, a single letter type (FIG. 4), a gate type (FIG. 5), and a box type (FIG. 6). Etc. are appropriately selected according to the underground structure 9 forming the tunnel. In the case of the one-letter type shown in FIG. 4, it is possible to combine an ordinary pipe roof 20 on the outside.
【0027】図示は省略するが、発進坑3内に反力壁、
ボックスカルバートと称せられるコンクリート函体によ
る地下構造物9をセットし、反力壁もしくは反力壁に並
べて設けるストラットと地下構造物9との間には元押し
推進ジャッキを設け、地下構造物9の先端にフード状の
刃口11を設けるとともに地下構造物9の先端と前記ルー
フ用鋼管5の後端とを対向かつ近接させる。Although illustration is omitted, a reaction force wall is provided in the starting shaft 3.
The underground structure 9 made of a concrete box called a box culvert is set, and a thruster jack is provided between the reaction wall or the strut provided side by side with the reaction wall and the underground structure 9, and the underground structure 9 A hood-shaped blade 11 is provided at the tip, and the tip of the underground structure 9 and the rear end of the roof steel pipe 5 are opposed to and close to each other.
【0028】地下構造物9の前端に、ルーフ用鋼管5の
後端下面を支承する支承受部材21を設ける。この支承受
部材21は支保工21aとその上に載置する受材21bとから
なり、この受材21bはルーフ用鋼管5に当接するものと
してコロのごとき摩擦抵抗の少ないものでもよい。At the front end of the underground structure 9, a bearing receiving member 21 that supports the lower surface of the rear end of the roof steel pipe 5 is provided. The support receiving member 21 comprises a support 21a and a receiving member 21b placed on the supporting member 21a. The receiving member 21b may be a member such as a roller having a small frictional resistance for abutting against the roof steel pipe 5.
【0029】このようにしてから、図2に示すように、
フリクションカッタープレート6を地中に残置しながら
ルーフ用鋼管5の後端を適宜長切断除去する。この除去
作業は地下構造物9内部から作業員が刃口11下に入り、
ここで行う。また、切断除去した部分は地下構造物9内
部を通り、発進坑3から地上に運ぶ。After this, as shown in FIG.
While leaving the friction cutter plate 6 in the ground, the rear end of the roof steel pipe 5 is appropriately cut and removed. For this removal work, a worker enters below the blade 11 from the inside of the underground structure 9,
Do it here. Further, the cut and removed portion passes through the inside of the underground structure 9 and is carried to the ground from the start pit 3.
【0030】次いで、図3に示すように、前記ルーフ用
鋼管5の後端の除去分に対応する長さをフリクションカ
ッタープレート6下で地下構造物9を掘進させる。Then, as shown in FIG. 3, the underground structure 9 is dug under the friction cutter plate 6 by a length corresponding to the removed portion of the rear end of the roof steel pipe 5.
【0031】かかるルーフ用鋼管5の後端を適宜長切断
除去工程と、地下構造物9の掘進工程を順次繰り返し、
地下構造物9が計画トンネルの他側に達したならば、支
承受部材21や刃口11を分解して地下構造物9内部を通
り、発進坑3から地上に運ぶか、幅狭に形成した到達坑
から撤去する。The step of removing the rear end of the roof steel pipe 5 as appropriate and the step of excavating the underground structure 9 are sequentially repeated,
When the underground structure 9 reaches the other side of the planned tunnel, the support member 21 and the blade 11 are disassembled and passed through the inside of the underground structure 9 to be carried from the start pit 3 to the ground or formed into a narrow width. Remove from the pit.
【0032】図7〜図9は本発明の第2実施例を示すも
ので、前記図1〜図3に示した第1実施例の応用例であ
る。7 to 9 show a second embodiment of the present invention, which is an application example of the first embodiment shown in FIGS. 1 to 3.
【0033】本実施例では、発進坑3はこれを鉄道等上
部交通1を挟んだ計画トンネルの両側に設ける。そし
て、両発進坑3から上面にフリクションカッタープレー
ト6を配設した断面箱型のルーフ用鋼管5を、計画トン
ネル断面の必要個所に合わせて並列させて順次接続しな
がら所要長地中に圧入し、このルーフ用鋼管5は端部同
士を計画トンネルの中央で合致させる。In this embodiment, the start pits 3 are provided on both sides of the planned tunnel with the upper traffic 1 such as a railroad line in between. Then, the box-shaped roof steel pipe 5 having the cross section box-shaped friction cutter plate 6 arranged from both launch shafts 3 to the upper surface is press-fitted into the required long distance while being connected in parallel in parallel with the required portion of the planned tunnel cross section. , The roof steel pipes 5 have their ends aligned with each other at the center of the planned tunnel.
【0034】各発進坑3においてルーフ用鋼管5の端に
地下構造物前端を対向かつ近接させ、フリクションカッ
タープレート6を地中に残置しながらルーフ用鋼管5の
端を適宜長切断除去する工程と、その除去分に対応する
長さをフリクションカッタープレート6下で地下構造物
9を掘進させる工程とを順次繰り返す。In each starting pit 3, the front end of the underground steel structure is opposed to and close to the end of the roof steel pipe 5, and the end of the roof steel pipe 5 is appropriately cut and removed while leaving the friction cutter plate 6 in the ground. The step of excavating the underground structure 9 under the friction cutter plate 6 for a length corresponding to the removed portion is sequentially repeated.
【0035】このようにして両発進坑3から施工されて
延びていく地下構造物9は、計画トンネルの中央で先端
が近接する。そして支承受部材21や刃口11を分解して地
下構造物9内部を通り、発進坑3から地上に運び、地下
構造物9の先端同時の隙間をコンクリート打設その他の
手段で埋めて地下構造物9同士を合体させる。In the underground structure 9 constructed and extended from both the start pits 3 in this way, the tips are close to each other at the center of the planned tunnel. Then, the bearing receiving member 21 and the blade 11 are disassembled, passed through the inside of the underground structure 9 and conveyed from the start pit 3 to the ground, and the gap at the same time as the tip of the underground structure 9 is filled with concrete or other means. The objects 9 are united.
【0036】[0036]
【発明の効果】以上述べたように本発明の地下構造物の
構築方法および装置は、鉄道、道路等の下部地中の土被
りの浅い位置に大幅員の地下構造物を横断方向に掘進建
設する際に上部交通に支障を与えることなく施工するこ
とができるものであり、特に、到達坑を全く設けること
なしに済ますかもしくは極めて幅の狭い到達坑ですみ、
また、計画トンネルの両側から地下構造物を掘進させ計
画トンネルの中央で合体させるような施工も可能なもの
である。As described above, the method and apparatus for constructing an underground structure according to the present invention is constructed by excavating a large number of underground structures in a transverse direction at a shallow earth cover position in a lower ground such as a railway or a road. It is possible to construct without disturbing the upper traffic when doing, especially, it is not necessary to install a reaching pit at all or only an extremely narrow reaching pit,
It is also possible to construct an underground structure by excavating it from both sides of the planned tunnel and merging it in the center of the planned tunnel.
【図1】本発明の地下構造物の構築方法および装置の第
1実施例を示す第1工程の側面図である。FIG. 1 is a side view of a first step showing a first embodiment of a method and an apparatus for constructing an underground structure of the present invention.
【図2】本発明の地下構造物の構築方法および装置の第
1実施例を示す第2工程の側面図である。FIG. 2 is a side view of a second step showing the first embodiment of the method and apparatus for constructing an underground structure of the present invention.
【図3】本発明の地下構造物の構築方法および装置の第
1実施例を示す第3工程の側面図である。FIG. 3 is a side view of a third step showing the first embodiment of the method and apparatus for constructing an underground structure of the present invention.
【図4】ルーフ用鋼管の第1配置例を示す説明図であ
る。FIG. 4 is an explanatory diagram showing a first arrangement example of roof steel pipes.
【図5】ルーフ用鋼管の第2配置例を示す説明図であ
る。FIG. 5 is an explanatory view showing a second arrangement example of roof steel pipes.
【図6】ルーフ用鋼管の第3配置例を示す説明図であ
る。FIG. 6 is an explanatory view showing a third arrangement example of roof steel pipes.
【図7】本発明の地下構造物の構築方法および装置の第
2実施例を示す第1工程の側面図である。FIG. 7 is a side view of the first step showing the second embodiment of the method and apparatus for constructing an underground structure of the present invention.
【図8】本発明の地下構造物の構築方法および装置の第
2実施例を示す第2工程の側面図である。FIG. 8 is a side view of a second step showing the second embodiment of the method and apparatus for constructing an underground structure of the present invention.
【図9】本発明の地下構造物の構築方法および装置の第
2実施例を示す第3工程の側面図である。FIG. 9 is a side view of a third step showing the second embodiment of the method and apparatus for constructing an underground structure of the present invention.
【図10】従来例の1例を示す側面図である。FIG. 10 is a side view showing an example of a conventional example.
【図11】従来例の他例を示す側面図である。FIG. 11 is a side view showing another example of the conventional example.
1…上部交通 2…土留鋼矢板 3…発進坑 4…到達坑 5…ルーフ用鋼管 6…フリクションカッタープレート 8…反力壁 9…地下構造物 10…元押し推進ジャッキ 11…刃口 12…小ジャッキ 13…止め部材 14…ストラット 16…反力受材 17…けん引ジャッキ 18…定着具 19…けん引部材 20…パイプルー
フ 21…支承受部材 21a…支保工 21b…受材1 ... Upper traffic 2 ... Domechi steel sheet pile 3 ... Starting pit 4 ... Driving pit 5 ... Roof steel pipe 6 ... Friction cutter plate 8 ... Reaction wall 9 ... Underground structure 10 ... Pushing jack 11 ... Blade 12 ... Small Jack 13 ... Stopping member 14 ... Strut 16 ... Reaction force receiving material 17 ... Towing jack 18 ... Fixing tool 19 ... Towing member 20 ... Pipe roof 21 ... Bearing receiving member 21a ... Supporting work 21b ... Receiving material
Claims (3)
配設した断面箱型のルーフ用鋼管を、計画トンネル断面
の必要個所に合わせて並列させて発進坑から順次接続し
ながら所要長地中に圧入し、このルーフ用鋼管後端に地
下構造物前端を対向かつ近接させ、フリクションカッタ
ープレートを地中に残置しながらルーフ用鋼管後端を適
宜長切断除去する工程と、その除去分に対応する長さを
フリクションカッタープレート下で地下構造物を掘進さ
せる工程とを順次繰り返すことを特徴とした地下構造物
の構築方法。1. A box-shaped roof steel pipe having a cross-section box-shaped roof having a friction cutter plate disposed on the upper surface thereof is aligned in parallel with a required portion of a planned tunnel cross section and sequentially connected from a start pit to be press-fitted into a required long distance, Place the front end of the underground structure facing and close to the rear end of the roof steel pipe, remove the appropriate length of the rear end of the roof steel pipe while leaving the friction cutter plate in the ground, and remove the length corresponding to the removal. A method for constructing an underground structure, which comprises sequentially repeating a step of excavating an underground structure under a friction cutter plate.
進坑を設け、上面にフリクションカッタープレートを配
設した断面箱型のルーフ用鋼管を、計画トンネル断面の
必要個所に合わせて並列させて両発進坑から順次接続し
ながら所要長地中に圧入し、計画トンネルの中央で端部
を合致させ、このルーフ用鋼管端に地下構造物前端を対
向かつ近接させ、フリクションカッタープレートを地中
に残置しながらルーフ用鋼管端を適宜長切断除去する工
程と、その除去分に対応する長さをフリクションカッタ
ープレート下で地下構造物を掘進させる工程とを順次繰
り返し、地下構造物は計画トンネルの中央で合体させる
ことを特徴とした地下構造物の構築方法。2. Steel pipes for roofs having a box-shaped cross section, which are provided with starter shafts on both sides of a planned tunnel across a railway or the like, and friction cutter plates are arranged on the upper surface, are arranged in parallel in accordance with the required points of the planned tunnel cross section. While sequentially connecting from both launch shafts, press fit into the required length of the ground, match the ends at the center of the planned tunnel, make the roof steel pipe end face and approach the front end of the underground structure, and place the friction cutter plate in the ground. While leaving it, the process of appropriately cutting and removing the end of the steel pipe for the roof and the process of excavating the underground structure under the friction cutter plate by the length corresponding to the removed amount are sequentially repeated, and the underground structure is the center of the planned tunnel. A method for constructing an underground structure, which is characterized in that
中に圧入されるもので、上面にフリクションカッタープ
レートを載置し、かつ適宜長切断可能な断面箱型のルー
フ用鋼管と、地下構造物前端に設けるもので断面箱型の
ルーフ用鋼管の後端下面を支承する支承受部材と、発進
坑側に設けるフリクションカッタープレートの後端の止
め部材とからなることを特徴とする地下構造物の構築装
置。3. A steel pipe for a roof having a box-shaped cross section, which is press-fitted into the ground so as to penetrate from a starting pit to a reaching pit, has a friction cutter plate mounted on the upper surface thereof, and can be appropriately cut to a long length. Underground structure characterized in that it is provided at the front end of the structure and consists of a support member that supports the lower surface of the rear end of the steel pipe for roof with a box-shaped cross section, and a stop member at the rear end of the friction cutter plate that is provided on the start pit side. Equipment for building things.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4124100A JP2876435B2 (en) | 1992-04-17 | 1992-04-17 | How to build underground structures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4124100A JP2876435B2 (en) | 1992-04-17 | 1992-04-17 | How to build underground structures |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0642286A true JPH0642286A (en) | 1994-02-15 |
JP2876435B2 JP2876435B2 (en) | 1999-03-31 |
Family
ID=14876930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4124100A Expired - Lifetime JP2876435B2 (en) | 1992-04-17 | 1992-04-17 | How to build underground structures |
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Country | Link |
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JP (1) | JP2876435B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4000933A1 (en) * | 1989-01-17 | 1990-07-19 | Hosiden Electronics Co | Electrical bush connector for cooking range - has plug pin located in guides formed on metal plates with contact assembly in end cap |
KR101245649B1 (en) * | 2012-10-10 | 2013-03-22 | 이상혁 | Apparatus for pressing steel pipe |
JP2022115312A (en) * | 2021-01-28 | 2022-08-09 | 誠 植村 | Underground structure construction method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58204295A (en) * | 1982-05-22 | 1983-11-28 | 植村 厚一 | Method and apparatus for constructing underground cylinder |
JPH02269297A (en) * | 1989-04-10 | 1990-11-02 | Koichi Uemura | Construction method of underground structure |
-
1992
- 1992-04-17 JP JP4124100A patent/JP2876435B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58204295A (en) * | 1982-05-22 | 1983-11-28 | 植村 厚一 | Method and apparatus for constructing underground cylinder |
JPH02269297A (en) * | 1989-04-10 | 1990-11-02 | Koichi Uemura | Construction method of underground structure |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4000933A1 (en) * | 1989-01-17 | 1990-07-19 | Hosiden Electronics Co | Electrical bush connector for cooking range - has plug pin located in guides formed on metal plates with contact assembly in end cap |
KR101245649B1 (en) * | 2012-10-10 | 2013-03-22 | 이상혁 | Apparatus for pressing steel pipe |
JP2022115312A (en) * | 2021-01-28 | 2022-08-09 | 誠 植村 | Underground structure construction method |
Also Published As
Publication number | Publication date |
---|---|
JP2876435B2 (en) | 1999-03-31 |
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